Final answer:
The Alcohol prohibition amendment was repealed by another amendment, the 21st Amendment.
Step-by-step explanation:
The amendment that was repealed by another amendment was the Alcohol prohibition.
The 18th Amendment, which was ratified in 1919, prohibited the manufacture, sale, and distribution of alcoholic beverages in the United States. However, after widespread public dissatisfaction with the Prohibition era, the 21st Amendment was ratified in 1933, repealing the 18th Amendment and effectively ending the nationwide ban on alcohol.
Therefore, the Alcohol prohibition amendment was repealed by the 21st Amendment.
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